Cleanup the other (non-playback, reading) eventstream while playback continues (no playback implemented yet).  Do it only a few (64) frees at a time so that we do not miss our timings.
Cleanup the other (non-playback, reading) eventstream while playback
continues (no playback implemented yet).  Do it only a few (64) frees
at a time so that we do not miss our timings.

turnipsi/mdl,turnipsi/mdl